Dr.pen Ultima X5 Replacement 36 Pins Cartridges （10 Pcs)

10pcs of 36 pins screw slot cartridge fit on dr.pen x5
How to turn on the cartridges on the dr pen x5?
√ Take out needle cartridge from the package
√ Pushing the needle cartridge horizontally into the round slot of dr.pen ultima X5.
√ Assemble the dr pen ultima X5 needle cartridge by counter clockwise rotation.
√ Take apart the needle cartridge by clockwise rotation.
√ Adjustment of the needle length should be done after turning on the dr.pen X5